1. First, make sure you're logged in to your Quizizz account.
2. Now go to the quiz you want to make public/private and click the "Edit" button (just below the "Play Live" and "Homework" buttons)
3. In Quizizz "Create" interface, you'll see an "Edit Quiz Info" button at the top-left (just below the Quizizz logo.)
4. In the popup, you will be able to switch to either Public or Private for the quiz. Click "Done" once you've made the change.
5. Click the "Finish" button after this to save and publish your changes.